Staging Packaged Air-Conditioning Units to Improve Energy Efficiency and Humidity Control by Reducing Cycling Losses

Pohlman, Dustin; Mohammed, Abdul Qayyum; Parker, Seth; Kissock, Kelly
July 2014
ASHRAE Transactions;2014, Vol. 120 Issue 2, p42
Academic Journal
No abstract available.


Related Articles

  • Energy- Efficient Dehumidification. Dieckmann, John; McKenney, Kurtis; Brodrick, James // ASHRAE Journal;Aug2009, Vol. 51 Issue 8, p78 

    The article discusses the significance of an energy-efficient dehumidification system in reducing primary energy consumption. It states that typical air conditioners have dehumidification capacity between 20-30% of the total cooling capacity. It adds that air-conditioning systems with enhanced,...

  • Feasibility of a solar-assisted winter air-conditioning system using evaporative air-coolers. El-Awad, Mohamed M. // International Journal of Energy & Environment;2011, Vol. 2 Issue 2, p277 

    The paper presents a winter air-conditioning system which is suitable for regions with mildly cold but dry winters. The system modifies the evaporative air-cooler that is commonly used for summer airconditioning in such regions by adding a heating process after the humidification process. The...

  • Simulation Analysis of the Four Configurations of Solar Desiccant Cooling System Using Evaporative Cooling in Tropical Weather in Malaysia. Dezfouli, M. M. S.; Mat, S.; Pirasteh, G.; Sahari, K. S. M.; Sopian, K.; Ruslan, M. H. // International Journal of Photoenergy;2014, p1 

    A high demand for air conditioning systems exists in hot and humid regions because of the warm climate during the year. The high energy consumption of conventional air conditioning system is the reason for our investigation of the solar desiccant cooling system as an energy-efficient cooling...

  • Development of a High-Efficiency Air Cooled Packaged Air-Conditioner for Data Centers. Sekiguchi, Keisuke; Waragai, Shisei; Uekusa, Tsuneo; Yamasaki, Kenji // ASHRAE Transactions;2010, Vol. 116 Issue 1, p330 

    The authors have been working on the development of constituent technologies that will contribute to saving energy in air cooled packaged air-conditioners, in order to reduce energy consumption in A/C facilities used in data centers, and have developed an A/C for data centers that incorporates...

  • Keeping It Simple with Data Center Cooling. Phillips, Buddy // Heating/Piping/Air Conditioning Engineering;Jun2011, Vol. 83 Issue 6, p8 

    The article discusses the cooling provided to data libraries by portable air conditioning systems which offer simple and flexible solutions at lesser costs in the U.S. It notes that concentrations of electronics within tightly confined places can be heightened by server consolidation. It...

  • Using two parallel connected compressors to implement a novel control algorithm for improved indoor humidity at a low cost. Xiangguo, Xu; Chao, Shen; Shiming, Deng // Building Services Engineering Research & Technology;Aug2013, Vol. 34 Issue 3, p349 

    A novel control algorithm, named H-L control, for a direct expansion air conditioning system was previously developed, so that an improved indoor humidity control was achieved at a higher energy efficiency. However, a variable speed compressor was used, leading to a high cost of implementation...

  • IEA-ECBCS Annex 41 Whole Building Heat, Air, and Moisture Response. Hens, Hugo S. L. C. // ASHRAE Transactions;2009, Vol. 115 Issue 2, p88 

    Combined heat, air and moisture (HAM) simulation at the building envelope level and building simulation have been separate activities for many decades. In HAM-models, the indoor conditions are handled as known boundary values, while all building simulation tools predict inside temperatures and...

  • Your own personal office climate control. Inman, Mason // New Scientist;12/5/2009, Vol. 204 Issue 2737, p23 

    The article focuses on a study which examined the impact of installing individual air-conditioning vents at office desks and allowing each employee to personally control them. Study authors claimed that installing individualized air-conditioning vents is expensive but its energy efficiency...

  • Data centre humidification comes of age. Marshall-George, David // ACR News: Air Conditioning & Refrigeration News;Jun2013, Vol. 29 Issue 9, p25 

    The article discusses changes in the use of humidifiers in data centers. Humidifiers are needed to prevent or control electrostatic discharge (ESD) which may damage sensitive electronics. Traditionally electrode boiler steam humidifiers have been used in a computer room air conditioning (CRAC)...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics