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Thanks , well explained ... several queries, what is critical Temparature ... what iis relevance of 723 Deg Celsius? What is the soaking time for hardening ? What is rate of cooling in Normalising ? Rate of cooling in quenching ? .. What are tempoartures for carburising ? Post carburising any hardening process is needed or carburising is enough ?

The conversions used in HVAC efficiency metrics, such as those between SEER and SEER2, or EER and EER2, are indeed close estimates rather than exact conversions. These conversions are intended to provide a way to relate older metrics to newer standards after adjustments have been made to reflect changes in testing procedures or regulatory standards. The conversions are practical tools for comparison but should be understood as approximations rather than precise mathematical equivalents. System Type Application: • Category 1 (5-ton ≤ SEER/SEER2): Typically, SEER and SEER2 are the relevant metrics. If the system is a heat pump, then HSPF/HSPF2 would also apply. • Category 2 (5-ton > EER/EER2, IEER): For larger systems, EER, EER2, and IEER are more relevant. If these systems are heat pumps, then HSPF/HSPF2 and COP/COP2 would also be considered. Equations: 1. Cooling a. SEER & SEER2: • Seasonal Energy Efficiency Ratio (SEER) • Seasonal Energy Efficiency Ratio 2 (SEER2) • Conversion: 1. SEER = SEER2 × 1.045 2. SEER2 = SEER / 1.045 3. SEER = EER / 0.813 b. EER & EER2: • Energy Efficiency Ratio (EER) • Energy Efficiency Ratio 2 (EER2) • Conversion: 1. EER = EER2 1.04 2. EER2 = EER / 1.04 3. EER = SEER × 0.813 c. IEER: • Integrated Energy Efficiency Ratio (IEER) • Conversion: IEER=(0.02×EER@100%)+(0.617×EER@75%)+(0.238×EER@50%)+(0.125×EER@25%) o Example EER is 11: EER at 100% load = 11.0 EER at 75% load = 13.9 EER at 50% load = 18.4 EER at 25% load = 19.1  IEER=(0.02×11)+(0.617×13.9)+(0.238×18.4)+(0.125×19.1)  IEER=0.22+8.5763+4.3792+2.3875  IEER= 15.563  IEER=~15.6 2. Heating a. HSPF & HSPF2 (Heat Pumps Only): • Heating Seasonal Performance Factor (HSPF) • Heating Seasonal Performance Factor 2 (HSPF2) • Conversion: 1. HSPF = HSPF2 × 1.18 2. HSPF2 = HSPF / 1.18 b. COP: • Coefficient of Performance (for Heat Pumps and sometimes Chillers) • Conversion: 1. COP = HSPF × 0.293 2. HSPF = COP / 0.293

Why we increase temprature when cooling

I can’t with this😊

Sir namste kindly give me clear cut details for the preparation and solving all question papers, now I am taking bee exam 2024 Sept I don't have time to read short period is there ,I any material you prepared I want sit whole day upto Sept 2024 kindly help me thank you

Wow

Thanks so much I really love ❤the the video

nice explanation

Goood ❤️❤️👍

Cooling coil me CHW MEANS

Gajab yr ❤

Can I get the lecture in pdf or ppt format?

thank god for 2x speed

thank you boss

nice job! excellent explanation is min. possible time.

I'm BSCE STUDENT its because of 3 idiots movies, i enrolled engineering🤧

Very good

czcams.com/users/shortsg6yFmTTV43I?feature=shared Heat treatment, or heat treatment in English, is a process in which a material, usually a metal or metal alloy, is subjected to a controlled cycle of heating and cooling to change its physical and mechanical properties. This procedure is used to improve the hardness, strength, ductility, hardness, corrosion resistance and other characteristics of the material.

No mention of long ton?

do we also apply casting tolerance on patterns?

Great video. Thank you!

Hindi me batoo sir

Those who are having experience in teaching field ( Electrical and Electronics Engineering) , are they eligible?

You speak slowly it is not convinent

good im happy

سلام وقتتون بخیر، آیا یک فرد مقیم کانادا با ویزای اپن ورک پرمیت و دانشجویی میتونه دعوتنامه بفرسته ؟