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Pankaj Anjankar Sanjay Lakade Atul Padalkar Sandeep Nichal Yuvarajan Devarajan Natrayan Lakshmaiya Naveen Subbaiyan 《环境质量管理》2023,33(1):61-69
Energy, cost, and environmental concerns play a vital role in understanding governing parameters of distributor design in falling film evaporators. Distributor design is a hidden parameter in many experimental papers. The uniform distribution of liquid refrigerant over the tube bundle mostly depends on two-phase liquid refrigerant and vapor refrigerant. This work conducted experiments with two distribution systems with and without separation of liquid-vapor refrigerant after expansion valve for the same evaporator capacity with R134a as a refrigerant. Results reveal that; separating vapor refrigerant has a positive impact on the approach of the evaporator with an open system distributor arrangement. The highest delta T and lowest practice are found at a heat flux of 13.97 kW/m2 with an available system distributor compared to a closed system with a heat flux of 14.25 kW/m2. The open system arrangement in the distributor is the novel parameter for distributor design, ensuring uniform distribution with minimum pressure drop and dry suction. An open system distributor has an average 16.1% capacity increase over a closed system. The experimental analysis helps to understand different parameters for the design of distributors in falling film evaporators for uniform distribution. 相似文献
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Nagappan Beemkumar Devarajan Yuvarajan Kariappan Elangovan Philip Shone Biju Gautam Shivam 《Environmental science and pollution research international》2021,28(10):12041-12055
Environmental Science and Pollution Research - This work analyses the performance and emission characteristics of biofuelled compression ignition (C.I) engine with the implementation of an... 相似文献
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Yuvarajan Devarajan Ravi kumar Jayabal Devanathan Ragupathy Harish Venu 《Frontiers of Environmental Science & Engineering》2017,11(1):3
This work investigates the effect of adding pentanol with biodiesel derived from cashew nut shell on its emissions characteristics is conducted in stationery diesel engine. The main purpose of this work is intended to reduce the emissions by fuelling biodiesel derived from cashew nut shell and the pentanol blends. Cashew nut shell biodiesel is prepared by transesterification process. Oxygenated additive used in the work is Pentanol. The experiment is conducted using four test fuels such as, biodiesel derived from cashew nut shell (CNSBD), a fuel containing 90% cashew nut shell biodiesel and 10% pentanol (CNSBD90P10), a fuel containing 80% cashew nut shell biodiesel and 20% pentanol (CNSBD80P20) and neat diesel. Experimental work concluded that by adding 10% of pentanol to cashew nut shell biodiesel 10.1%, 2.6%, 5.1%and 2.1%reduction in CO, HC, NO x and Smoke emissions were observed respectively. Further by fueling with these blends, no modifications in engines were required. 相似文献
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Pandian Amith Kishore Ramakrishnan Ramesh Bapu Bathey Devarajan Yuvarajan 《Environmental science and pollution research international》2017,24(29):23273-23278
Environmental Science and Pollution Research - Biodiesels derived from the mahua seeds are established as a promising alternative for the diesel fuel owing to its non-edible nature and improved... 相似文献
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Nagappan Beemkumar Devarajan Yuvarajan Kariappan Elangovan 《Environmental science and pollution research international》2022,29(32):48411-48423
Environmental Science and Pollution Research - The work aims to analyse an ejector refrigeration system powered with solar energy through serially connected collectors to lower greenhouse gases.... 相似文献
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