【Daily Question】Dec 9, 2015: Fluid flow direction in heat exchangers (Top 50 participants + 2 rewards)

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This post was last edited by gn_1984 on 2015-12-10 at 16:04. In order to increase the popularity of the heat exchange section, a \"Question of the Day\" activity has been introduced there; this helps to foster an active atmosphere for technical exchanges while also providing members with financial rewards. 【Daily Question】The general flow direction of the cold fluid in a heat exchanger is ( ) A. Low in, high out; B. High in, low out; C. Low in, low out; D. High in, high out. Correct answer: A. (This ensures thorough heat exchange.) Please reply with your answer; participating in this quiz earns you +2 wealth points (points are added automatically. If your answer is incorrect, no additional points or comments will be given). Those who answer all questions correctly will receive an additional +3 to +8 wealth points. Those who provide a thorough analysis or explanation for their answers, or who cite standard criteria for their explanations, will receive extra wealth points as well. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or best assistance). Feel free to answer the questions. Note: We will close this post after 24 hours to reveal the answers and explanations, as well as the best response (the best help provided). Charisma Reward: If you post a topic in this section within two days to provide a detailed explanation of the knowledge points covered in this question, please reply to this post to inform us, and we will have a moderator award you charisma points. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions. After registration, we will rank participants based on the content of their posts: the last-place contestant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. Other content: AC version of heat exchange equipment – “One question per day” competition (prizes for participation; valid indefinitely) http://bbs.hcbbs.com/thread-1320941-1-1.html. The selection process for active users and “Weekly Stars” in the “Mechanical Section” has begun http://bbs.hcbbs.com/thread-1489069-1-1.html. Recruitment for moderators and technicians in the [Mechanical Section] – applications and referrals are welcome. [Valid indefinitely] – Come if you’re interested! 】http://bbs.hcbbs.com/thread-1288857-1-1.ht【Mechanical Section】In-depth guide to preventing freezing of equipment during winter http://bbs.hcbbs.com/thread-1502793-1-1.html Chemical equipment and machinery