Essays about: "Direct refrigerant system"

Showing result 1 - 5 of 6 essays containing the words Direct refrigerant system.

1. 1. Comparative Analysis of Modern Energy Systems for Ice Rinks

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Pendar Hemati; [2023]
   Keywords : Ice rinks; refrigeration; heat recovery; CO2; ammonia; propane; Pistas de hielo; refrigeración; recuperación de calor; CO2; amoníaco; propano;

   Abstract : Ice rinks are highly energy-intensive commercial buildings with an average annual energy consumption of 1,000 MWh, most of it being used to cover the simultaneous heating and cooling demands. The aim of this thesis is to find the most energy efficient energy system for ice rinks by evaluating different system modifications and refrigerants. READ MORE

3. 2. Natural Refrigerants in Data Center Cooling with Thermosiphon Application

   University essay from KTH/Energiteknik

   Author : VICTOR HEINERUD; ANDRÉ SAHLSTEN; [2016]
   Keywords : ;

   Abstract : Ever since the computer was invented, there has been a need of data storage and the demand has strictly grown since. This has resulted in a huge amount of data centers and the trend has shown no signs of changing. The data centers are powered by electricity and in 2010 the electricity consumption for data centers stood for 1. READ MORE

4. 3. SECONDARY FLUIDS USED IN INDIRECT REFRIGERATION SYSTEMS IN SWEDEN

   University essay from KTH/Tillämpad termodynamik och kylteknik

   Author : Patrick Javier Salom Munoz; [2015]
   Keywords : Secondary fluids; ground source heat pumps; indirect refrigeration system; regulations; Swedish market;

   Abstract : Interest in indirect (secondary) refrigeration systems has grown since the discovery of the negative effect of environmentally hazardous refrigerants and leakage problems from direct expansion systems. Among the positive effects of indirect systems are: decreased quantities of primary refrigerant, factory built units and confinement of refrigerant to the machine room. READ MORE

5. 4. Experimental Evaluation Of Large Scale Propane Heat Pump For Space Heating Application

   University essay from KTH/Tillämpad termodynamik och kylteknik

   Author : Salvatore Piscopiello; [2015]
   Keywords : Heat pumps; propane; tandem compressor; IMSTART model; hydraulic system design;

   Abstract : A significant part of the environmental impact of a heat pump isgenerally related to the direct emission of the refrigerant fluid during thelife time of the machine. Although the Montreal Protocol has alreadylargely secured its status as a success story by cutting the ozone deplentationrefrigerants drastically, we still have to deal with the challengesresulting from climate change. READ MORE

6. 5. Parametric Ram Air Channel Model for Flow Optimization

   University essay from Fluida och mekatroniska system; Tekniska högskolan

   Author : Chetan Kumar Nangunoori; Ravichandra Kumar Kumar Bhaskar; [2012]
   Keywords : ;

   Abstract : Ram air channel or NACA channel is used to direct the ambient air for various purposes in an aircraft, such as pressurizing the cabin or as a coolant to heat exchangers and even more other applications like a cooling of the coolant. It is designed; such that it supplies the required amount of ambient air for various operations as mentioned, even aero-dynamical features should be taken into consideration while designing. READ MORE