Experimental Study of Half-Cycle Refrigeration System on Temperature Profile of LPG-Fueled Vehicles for Agricultural Transport Muhammad Latifur Rochman (a,b*), Dimas Riki Romadhon(b,c), Rama Pradana Aditya(b,c), Prima Nofan Ryastama(b,c), Damar Setyo Prakasa(b,c), Ahmad Tresno Adi(a,b), Dhasa Ikrar Setyanansyach(a,b), Muji Setiyo(a,b,c)
(a) Department of Mechanical Engineering, Universitas Muhammadiyah Magelang, Indonesia
(b) Center of Energy for Society and Industry, Universitas Muhammadiyah Magelang, Indonesia
(c) Department of Automotive Engineering, Universitas Muhammadiyah Magelang, Indonesia
Abstract
This paper reports the experimental cooling effect used on LPG-fueled vehicles to transport agricultural products. The fuel line was modified by adding an evaporator equipped with an expansion valve between the LPG tank and the vaporizer. The equipment is installed in a specially made box. The research was conducted on a 1495 cc engine with a special evaporator which was tested at variations of blower speed levels 1, 2, and 3. The tests were carried out at engine speeds of 1000, 2000, and 3000 rpm. The results showed the lowest cooling effect at blower speed level 1 with an engine speed of 1000 rpm and the highest at blower speed level 3 with an engine speed of 3000 rpm. The greatest cooling effect was obtained at 373 Watts at 3000 rpm engine speed and level 3 blower speed.
