Ventilating
: the process of "changing" or replacing air in any space to control temperature or remove moisture, odors, smoke etc
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Engineer General Machinery
Engineer Air-Conditioning Refrigerating Machinery
Engineer Fire Fighting Facilities –Mechanical
temperature, pressure,
saturated liquid and vapor volume as well as using the general formulas
of the three gas laws. There are 7 graphs which plotted based on the
pressure and volume (PV) calculation and lastly a 3D graph showing
the relationshipsof temperature, pressure and volume. All these graphs
are plotted using the Matlab program.
Through this design project, we find tha
temperature transformation diagram): 온도, 시간, 변태곡선
3) 표면 경화법
① 화학적 표면 경화법
ⅰ) 침탄법: 고체(목탄, 코우크스), 가스(CO,CO2,메탄,에탄,프로판), 침탄깊이 0.5~2mm
ⅱ) 시안화법: KCN, NaCN (청화법)
ⅲ) 질화법: NH3, 50~100 Hr, 자동차의 크랭크축, 캠, 펌프축 등에 사용. 질화층 0.4~0.8mm
* 특징
temperature underground reaches about 122 degrees Fahrenheit, and after a sufficient amount of time, most of the biogenic methane has been generated. Also at this time nearly two thirds of the moisture has been expelled and the coal has reached a rank of subbituminous (Rightmire, 1984).
After the coal’s temperature has exceeded 122 degrees Fahrenheit due to the geothermal gradient and excessiv
기관의장 설계 편
A. 기장설계의 정의
조선소에서 하는 선박의 기관부(機關部) 관계의 설계와 공작. 기관의장 설계라고 하면 일반적으로 배관설계를 말하는 것인다. 구체적으로 기관배관SYSTEM, 기관배관, 기장철의장, 기장 축타 설계로 구분이 된다.
B. 기장설계 업무
기장설계는 “기관실에 대한 의