Category Archives: General

The use of evaporative cooling devices in air conditioning systems in industrial buildings

21
Mar

Ensure air quality problem in a production environment, of course, belongs to the category of technology, because the focus is not so much to provide a comfortable environment, as aims to provide the necessary working conditions.

Without exaggeration we can say that the requirements for maintenance of the microclimate of the working area in the non-ferrous metallurgy enterprises are sufficiently “extreme” – this applies to the withdrawal of heat generation, and to ensure the necessary gas composition of the air.

It is known that the atmosphere in the working areas of non-ferrous metallurgy is characterized by relatively high concentrations of various gases, harmful effects on the health of staff and, consequently, complicating the implementation of their manufacturing operations.

The necessity of a large volume of gas emission assimilation determined the characteristics of the air in the production area, when its entire volume as possible is divided into separate work areas in which the local pumps are organized in combination with natural aeration space.

The problem of providing the desired microclimate in the crane cab is being addressed by at least two directions.

The first direction may include technical solutions that provide cab climate by supplying air from a central ventilation system through the movable duct. The disadvantages of this engineering solution is to limit the technological capabilities of the crane and decreased ventilation capacity due to deformation of the duct arising during operation.

The second direction is the use of self-contained air conditioning systems.

Today, we can confidently say that the main devices for cleaning the air from harmful gases are chemical filters, which are columns, equipped with a variety of nozzles, in which the contact between the aqueous solutions of reagent and purified air. Operation of these devices requires no special training, they are effective, reliable and easy to maintain.

However, these devices still have some drawbacks in terms of air quality in the limited space. Thus, during the absorption of harmful gases caused by direct contact of an aqueous solution of the reagent and air is carried adiabatic humidification. In fact, the moisture content has reached the resulting purified air is greater than the parameters of adiabatic humidification.

Ensuring the microclimate in the working areas of non-ferrous metals associated with the solution of a number of specific problems caused not only a high level of heat and water generation associated with certain technological processes, but also high gas content of the atmosphere. Used traditionally centralized ventilation methods require the use of large air exchange rates, which may not always be justified from an economic and environmental standpoints, and in some cases creates an unsolvable technical problem, which is fully applicable to the provision of the microclimate in the cabs of moving objects.

Known technical solutions in the field of air purification of harmful gases, based on the use of chemical methods, by themselves unable to provide the required sanitary standards of the air environment.

Therefore, the solution to this problem is possible based on the combined use of heat and humidity of air pre-processing to achieve a balance in the exchange of heat and moisture between the streams in chemical interaction

The choice of energy-efficient office buildings air conditioning systems

21
Mar

The microclimate of office space has a decisive influence on the individual performance of people, especially – temperature parameters of the environment in the room. Tired and not the location of the work is very often the consequences of poor indoor climate parameters, while, with significant economic consequences. With the construction of office buildings of class “A” requirements to a microclimate of comfort increased significantly, necessitating the installation of professional technically air conditioning systems.

One of the challenges of designing modern office building is to identify possible thermal regime at various measures of its software in the choice of economically viable option, maintains optimum air-heat treatment of all premises taking into account the coefficient of security.

Selection of the air conditioning system in the building must be carried out on the basis of carefully consider the terms of reference. The job has specific requirements for the microclimate (thermal comfort, a minimal amount of outside air and movement of air in the room to be ventilated, noise level and other parameters relevant to the purpose of each room context). It is necessary to take into account the desired life of the system, to assess the future costs of maintenance and operation. You also can not neglect the aesthetic requirements of the designer, the client and the user.

The architecture of the building and its layout have a direct influence on the choice of the air conditioning system. Along with the climatic characteristics, they are the source of data for determining the external heat gain, a significant proportion of which in the warm season of the solar radiation. Obviously, the constructive measures for sun protection are able to greatly reduce the load on the air conditioning system.

Air quality at airports

16
Mar

 

A consequence of the application of large amounts of outside air ventilation and heating systems of buildings and constructions of airports cannot be a reduction, but rather an increase in the risk of negative effects of pollutants. As one of the solutions to air quality problems in these areas are invited to use the gas filtering systems.

The volume of cargo transportation by air transport has steadily increased (from 40 to 100% per year). However, this type of cargo is not completely safe for the environment. The main objective is to minimize the airline harmful effects on the environment and, in particular, the noise level. In the US, hygienic air conditions in the rooms set the standard ASHRAE 62 – 1989.

However, to meet the requirements of this standard with the help of ventilation to the outside air quality and meet regulatory requirements. Recent studies have shown that the highest level of contamination found on the leeward areas of the airport, the departure and arrival halls and ticket offices.

Thus, when it is required to increase the quality of indoor air, the use of large amounts of outside air can increase rather than reduce the risk to human health. In the design of ventilation systems at airports must be considered as the level of outdoor air pollution, and harmful substances released indoors.

Winterize air conditioners for the winter

08
Dec

Air conditioning can be damaged by cold weather, even if it is turned off. Low temperatures can be punished for minor mistakes when installing the air conditioner adversely affect the materials, parts and components of the device. For the conservation of the air conditioner can contact a service technician cents, or carry out the procedure themselves.

Usually action include three main stages:

  1. Transfer the refrigerant in the outdoor unit to avoid its losses through loose connections outer Freon line
  2. Blocking the possibility of including the air conditioner to avoid accidental start-up
  3. Fencing outdoor unit when there is a risk of damage by ice or falling icicles

In preparation for winter air conditioning service technicians can be done and a professional cleaning air conditioning, it’s generally, it should be done at least once a year.

  1.  Disconnect the power supply
  2. Clean the air conditioner with a damp and then a dry cloth (in those places where it can be done)
  3. Clear filters from contamination
  4. Be sure to dry the air conditioner (it will turn out, if you include the heating mode, if available, for 30-40 minutes, and then the ventilation mode for another half an hour, or just for a longer period including ventilation)
  5. Carefully clean debris from all kinds indoor and outdoor unit
  6. Clear off any snow or ice that may accumulate on the unit throughout the winter months.

Dry the air conditioner after a season of work before sending it in “hibernation”, be sure to do – or the winter inside the device might be mold, when you turn on the unpleasant odor in the Living space spread disease-causing bacteria, mold spores.

Ammonia a Natural Refrigerant – controlling ozone depleting

07
Apr

 

Industrial refrigeration is used in about two-thirds of the facilities of the food industry, therefore, deserves a special mention. Food preservation achieved inexpensively by using canning, freezing, or drying techniques. Modern-day food preservation methods. The conservation of all meat and fish, fruits and vegetables, dairy products etc. is ensured by means of low temperatures.

In refrigeration systems in the food industry, the refrigerant used is usually ammonia. As refrigerant, ammonia offers many advantages

Energy efficiency Ammonia is one of the most effective refrigerant and has a wide range of applications. With an increasing emphasis on energy ammonia refrigeration systems are safe and reliable choice for the future. Thus, the use of ammonia in refrigeration systems that condense water cooled evaporative cooling equipment are an extremely efficient technology for the food industry usually 15-20% more efficient

Environmentally friendly Ammonia is a natural and environmentally friendly refrigerant, and more over its global warming potential GWP and ozone depletion potential ODP zero.

Security Ammonia is toxic under certain conditions – flammable. Therefore, it requires careful handling at the same time ammonia, smell of ammonia is most security guarantee, unlike other refrigerants having no odor, ammonia refrigeration has a proven record of safety, partly because leaks are easily detectable.

Smaller diameter pipes as gaseous or liquid ammonia for smaller diameter pipes are needed in comparison with most refrigerants.

High heat transfer parameters compared with most refrigerants ammonia has better heat transfer characteristics that can be used with the equipment at the surface of the heat transfer and thus reduce the cost of the refrigeration system.

The cost of the refrigerant in many countries, the cost of ammonia (1 kg.) is significantly lower than the cost of HFC refrigerants.

The advantages of using this technology is summarized: energy efficiency, respect for the environment, health safety and unbeatable relationship between investment and performance.

The truth is that the use of evaporative cooling in industrial processes involves a choice of topical given the benefits of energy efficiency, environmental friendliness and resource optimization based on performance it provides. Evaporative cooling is secured thereby, as a future technology

Inverter Air Conditioning – Ideal for Electricity Saving

07
Apr

 

Inverter air conditioning is expensive while comparing to non-Inverter air conditioning, but it gives significant advantages on power savings.

  1. At least 30% – 50% cheaper to run as it consumes less power
  2. Achieve desired temperature very quickly
  3. Startups 30% faster
  4. Much quieter
  5. No temperature fluctuations, maximizing comfort level
  6. No voltage peaks from compressor

Unlike conventional systems, Inverter compressor speed adapts to the needs of each moment, allowing only consume the energy.

Inbuilt Electronic device is sensitive and identify the temperature changes to supplies, equipment vary Inverter engine speed compressor to provide the power required. Thus drastically reducing temperature swings, keep getting in the range between -1 and + 1 ° C and enjoy greater environmental stability and comfort.

And so when they are about to reach the desired temperature, decrease the power equipment to avoid peak compressor starting. Thus the noise is reduced and consumption is always proportional.

No Inverter: On cold days without an air conditioner inverter function heats the room not quite right.

With Inverter: When producing 60% more heat than models constant speed, inverter air conditioners heat a room quickly even in the colder days.

Efficient use of power

No Inverter: The compressor is switched on and off according to temperature changes in the room. In other words, whenever the temperature fluctuates.

With Inverter: compressor speed and thus output power, is adapted to the room temperature. This efficient and linear temperature regulation at all times maintains a nice room.

Lower power consumption

No Inverter: An inverter air conditioner without function consumes approximately twice as much electricity. With this difference, not take long to get high bills.

With Inverter: An inverter air conditioner consumes half the electricity that a model without inverter function, so you get more welfare for much less money.

Heart Pumping Workout : HVAC Compressor Maintenance?

02
Apr

Compressor is the main heart beat of machine. While comparing compressor with human heart its beginning same one. Most similar one in both is circulating system like how heart circulates all functions in body. Likewise the compressor will handle the all functions in machine. If the compressor fails it will affect the whole machine to avoid this we should maintain properly.

It was found that most of the problems with the compressor is not related to the quality of the product, and is the result of lack of understanding of the principles of operation of air conditioning systems, improper maintenance and repair.

How to maintain the compressor  

  1. check the pressure and temperature of the refrigerant at the inlet and outlet of the compressor;
  2. Check the temperature of inlet and outlet of the compressor and condenser tubes. High pressure pipes should be hot and dry;
  3. Verifying that the condenser and the radiator fan. The appearance of moisture or frost on the part of the high pressure can hinder the flow of refrigerant;
  4. Check the temperature difference between the inlet and outlet of the dryer. If the temperature difference is greater than 3 ° C, then the system is too high moisture content;
  5. Check the refrigerant for Icing elements of the air conditioning system which can cause  blockage on the system;
  6. check tension and condition of the compressor belt;
  7. Check for extraneous noise in the compressor, expansion valve, fan and air-conditioning system channels.

The Advanced Pre cooling Commercial Rooftop HVAC system

15
Mar

The Most Advance HVAC Rooftop system Designed by EVAPORCOOL, which has no movie parts and providing the best energy savings while comparing the Commercial roof tops units used for air cooling.

The systems includes high performing real time monitoring basis: temperature, energy usage, energy savings and failures. Monitoring and remote control is done through a 3G/4G internet network

  1. Requires Kilo Watts to operate the Equipment is reduced
  2. Filter Prevents Dusts reaching the condenser coil.
  3. Run at lowest condensing temperature, it will increase efficiency
  4. Smart Spray controller enables a minimal amount of water
  5. The system leaves no standing water or runoff water.