Explore chapters and articles related to this topic
Organic Rankine cycle integrated hybrid arrangement for power generation
Published in Anoop Kumar Shukla, Onkar Singh, Meeta Sharma, Rakesh Kumar Phanden, J. Paulo Davim, Hybrid Power Cycle Arrangements for Lower Emissions, 2022
Mohammad Bahrami, Fathollah Pourfayaz, Ali Gheibi
A condenser is a device that is responsible for cooling the operating fluid and converting the vapor state to a liquid. This is done by cooling the material. During this process, the latent heat of the material is taken and transferred to the condenser cooler. Therefore, condensers can be considered as a kind of heat exchanger. Since heat transfer from the condenser surfaces is done by conduction, the condenser size (capacity) is a function of the heat transfer equation. The physical properties of the condenser depend on the size of the plant and the working fluid properties.
Boiler Operator's Handbook
Published in Carl Bozzuto, Boiler Operator's Handbook, 2021
Every source of water for a water cooled condenser can be counted upon to be colder than air except in the winter. Even water cooled by a cooling tower is colder than the temperature of the air. Heat transfer between metal and flowing water is considerably higher than the heat transfer between metal and flowing air. Water cooled condensers are preferred because they permit lower saturation temperatures inside the condenser, which reduces the horsepower requirements of the compressor.
Mechanical Systems
Published in Scott Offermann, Creating a Strategic Energy Reduction Plan, 2020
If any of these items are changed, the operation and the efficiency of the air conditioner will be compromised. There are many factors that can contribute to these items such as dirty, clogged or damaged fins on the evaporator and condenser coils and restricted air flow by fencing are the major cause of condenser issues. See Figures 2–3, 2–4, and 2–5.
Review on performance analysis in diffusion absorption refrigeration system (DARS) using different working fluids
Published in International Journal of Ambient Energy, 2023
Sreenesh Valiyandi, Gireeshkumaran Thampi
The ammonia-water mixture from the absorber enters the generator, and ammonia gas bubbles are formed due to the heat-supplying action of the generator. Through the bubble pump, such generated bubbles are lifted with water and passed as a weak solution to the absorber. The formed ammonia vapour from the bubble pump gets condensed in the condenser and enters the evaporator. In the evaporator, hydrogen gas gets supplied; thus, the partial pressure of the liquid ammonia tends to be reduced. Then the ammonia is evaporated, and ammonia-hydrogen vapour passes into the absorber. The weak solution in the absorber absorbs the vapour ammonia, then the strong solution returns to the generator, and the cycle continues. Shelton, Stewart, and Erickson (2002) addressed that the air-lift pump or bubble pump is a device that increases water using steam bubbles or compressed air or increases a liquid by introducing bubbles into the outlet pipe. This has the effect of reducing the hydrostatic pressure in the outlet pipe. On the opposite side of the condenser (also known as the evaporator), the refrigerant is turned into a gas by absorbing heat from the hot air inside the box. It allows the refrigerator to absorb the heat from hot air and quickly reach its lowest boiling point. The refrigerator evaporates and absorbs maximum heat. A condenser is a part of the refrigeration system, a heat exchanger that changes vapour or gas into a liquid.
Techno-economic analysis of the integration of flue gas dryer and steam-air preheater into biomass power plant
Published in Drying Technology, 2022
Condenser is a heat exchanger that has the sufficient heat transfer area so that all of the exhaust steam is condensed, resulting in saturated liquid water at the condenser outlet. If it is assumed that the pressure loss of condensed steam is negligible, h4 can be determined. After leaving condenser, the pressure of feed water is increased from p3 to p2 by the first pump. The specific work input for the first pump and the specific enthalpy of feed water at the inlet of FWH2 are expressed as where v4 is the specific volume of saturated liquid water at the condenser outlet, and ηp is the pump isentropic efficiency, which is assumed to be 70%.
Dynamic modelling of a ground-coupled solar ejector cooling system
Published in International Journal of Sustainable Energy, 2022
As concluded from the discussed literature, the condensing temperature is a key parameter to increase the SECS performance, and so the integration of geothermal boreholes capable of reducing this temperature is essential in this context (Ersoy et al. 2007; Ghodbane, Boumeddane, and Lahrech 2021). Furthermore, ECS is considered as a promising technology with water-cooled condensers as stated in (Bellos and Tzivanidis 2017). Consequently, coupling the ejector system to a geothermal borehole heat exchanger that aids with the refrigerant condensation process by decreasing the condensation temperature is expected to enhance the overall efficiency (Huang et al. 2020; Li and Liu 2018). Indeed, the underground temperature is lower than the ambient temperature in summer. In addition, the water-cooled condenser is more efficient in terms of heat transfer than its air-cooled counterpart and hence contributes to the COP increase of the system. Therefore, the combination with the geothermal boreholes is expected to help to overcome the major drawback of the ECS by increasing its performance. The drawback of using the geothermal boreholes is the higher investment cost which is compensated by the lower system operating costs.