Use of the sun energy by the human being it is lost in the time.

1. However, applying the stainless steel solar water heater knowledge gained from ancient times and the development of new materials, it has created applications for obtain welfare at home. The water tank exposed to sun in the past, has led to modern solar collectors to have domestic hot water (DHW), heating and similar services, with the same purpose as photovoltaic and wind systems
2. This investigation is about study of testing three different types of solar water heaters. Two flat plate collectors with different material of the coil, one with stainless steel coil, the other with a copper coil and vacuum tubes are analysed. This in order to do a comparison of their performance curves and determine the optimal system.
3. This project seeks to find a balance between environment and economy. Solar domestic hot water system by thermosyphon, where the liquid flows from the solar collector to the solar powered heater storage tank by buoyancy forces, has spread widely in the field of practice and research [3]. Numerous studies have investigated the performance solar powered water heater of solar water heaters operating by thermosiphon [4-7]. Burbano et al. 
4. they built a thermosyphon solar water heater with an interesting design process. Zerrouki A. et al. [5] found experimentally that solar thermal colector the rate of mass flow increases in the hour of greatest radiation (11am - 2pm). Sakhrieh and Al-Ghandoor hot water tanks presented an experimental study of the performance of different types of solar collectors and conclude that the vacuum tube collector is the top performer with respect to efficiency, with a maximum value of 72%. Gupta and Garg

Batch collectors, another type of ICS collector

• can be very simple: Just put a tank of water solar collector in the sun and let it heat up. If you paint the tank black, it absorbs more heat. If you use some reflective material such as aluminum foil to focus even more sunlight onto the tank, it works even better. If you seal it in an enclosed container with a glazed window, you get the best results.
• Batch collectors work well solar heating systems without pumps and control systems, so they’re good candidates in remote locations. Batch collectors can weigh a lot, more than 1,000 pounds when they’re full of water, so electric geyser in pakistan you need to make sure that the mounting location can handle this kind of weight. 

1. Sourcing has also been the industry of choice for entrepreneurs in China over the past 20-30 years. Importing and tech start-ups are popping up all over the country, but manufacturing still represents some of the brightest opportunities in the largest country in the world.
2. What exactly does sourcing entail? How does one china sourcing company go about getting clients? What are the best ways to locate factories and better yet control the quality of your products? Is this a business you can scale? What kind of margins are possible?
3. This blueprint will dig into all of the above.
4. The point of this guide is to make sure you have what is a purchasing agent a thorough grasp on what it means to be a sourcing agent so you can determine if it’s the right path for you. In this blueprint we will also provide in depth information regarding manufacturing best business practices and how to work directly with factories.
5. As you know, doing business in China is no cakewalk. No question there will be speed bumps and a bit of confusion along the way, but this will not only help prepare you for these inconveniences, but give you the tools necessary to be successful.