Challenges in Selecting an Appropriate Heat Stress Index to Protect Workers in Hot and Humid Underground Mines

Roghanchi, Pedram; Kocsis, Karoly C.

doi:10.1016/j.shaw.2017.04.002

Cited by 72 publications

(40 citation statements)

References 23 publications

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“…RUDNIKA U ODNOSU NA KLIMATSKE USLOVE Pri oceni klimatskih prilika u literaturi i inženjerskoj praksi u primeni je niz različitih indeksa toplotnog opterećenja [9]. Istraživanja su ukazala na to da ne postoji jedinstveni, opšti sistem za određivanje toplotnog opterećenja [10,11].…”

Section: Uporedni Standardi Ventilacijeunclassified

“…Pregled indeksa toplotnog opterećenja koji se koriste pri analizi i oceni klimatskih uslova u podzemnim rudnicima prikazan je u tabeli 1 [9]. Tabela 1.…”

Section: Uporedni Standardi Ventilacijeunclassified

“…Tabela 1. Pregled najčešće korišćenih indeksa toplotnog opterećenja u rudarstvu [9] Br. Indeks Autori…”

Section: Uporedni Standardi Ventilacijeunclassified

“…Preporuka je da se izbor izvrši kroz dve faze: fazu planiranja i projektovanja i fazu proizvodnog rada [9]. U fazi planiranja i projektovanja bi se izvršila detaljna i složenija analiza dok bi u fazi proizvodnog rada indeks toplotnog opterećenja bio izabran za lokalne uslove uz što je moguće jednostavnije i brže određivanje.…”

Section: Tw -Temperature Vlažnog Termometra; Tatemperature Vazduha (Sunclassified

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Analysis of climatic conditions limits in underground mines from the legislation perspective of the Republic of Serbia

Lilić¹,

Cvjetić²

2019

Tehnika

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Rudarsko-geološki fakultet, BeogradSavremenu podzemnu eksploataciju ležišta mineralnih sirovina, uključujući i rudarstvo u Srbiji, karakterišu tri opšta trenda: sve dublji rudnici, mehanizovanije rudarske aktivnosti i stroži standardi bezbednosti i zdravlja na radu. Ventilacija rudnika u datim uslovima predstavlja jednu od najznačajnijih komponenti troškova energije pri obezbeđivanju potrebnih količina vazduha za provetravanje, kvaliteta rudničke atmosfere i zahtevanih klimatskih uslova sa aspekta bezbednosti i zdravlja radnika. Pravilnik vezan za podzemnu eksploataciju metaličnih i nemetaličnih mineralnih sirovina problematiku normativa klimatskih uslova reguliše vrlo konzervativno i u velikoj meri anahrono međunarodnom iskustvu pa čak i rešenju u pravilniku za podzemnu eksploataciju uglja. U okviru ovog rada izvršena je studijska analiza normativa za komforne uslove rada u podzemnim rudnicima sa aspekta različitih indeksa toplotnog opterećenja i klimatskih uslova u različitim zemljama i izvršeno je poređenje sa rešenjima srpske regulative. Nakon sagledavanja i analize svetskih iskustava kao i iskustava domaće prakse predložena je izmena pravilnika tako da se i u rudnicima sa podzemnom eksploatacijom metaličnih i nemetaličnih mineralnih sirovina klimatske prilike ocenjuju preko efektivne temperature, što će omogućiti ekonomičniju eksploataciju uz obezbeđivanje potrebnog nivoa bezbednosti i zdravlja radnika. Ključne reči: podzemna eksploatacija, ventilacija rudnika, klimatski usloviAdresa autora: Nikola Lilić, Univerzitet u Beogradu, Rudarsko-geološki fakultet,

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Section: Uporedni Standardi Ventilacijeunclassified

“…Pregled indeksa toplotnog opterećenja koji se koriste pri analizi i oceni klimatskih uslova u podzemnim rudnicima prikazan je u tabeli 1 [9]. Tabela 1.…”

Section: Uporedni Standardi Ventilacijeunclassified

“…Tabela 1. Pregled najčešće korišćenih indeksa toplotnog opterećenja u rudarstvu [9] Br. Indeks Autori…”

Section: Uporedni Standardi Ventilacijeunclassified

Section: Tw -Temperature Vlažnog Termometra; Tatemperature Vazduha (Sunclassified

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Analysis of climatic conditions limits in underground mines from the legislation perspective of the Republic of Serbia

Lilić¹,

Cvjetić²

2019

Tehnika

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“…A healthy internal body temperature for the human body falls within a narrow range. Human body temperatures above 41ºC and below 35ºC can only be tolerated for short periods of time (Roghanchi & Kocsis, 2017). The process through which the body maintains a healthy body temperature is called thermoregulation.…”

Section: Report Outlinementioning

confidence: 99%

UQ eSpace

Dignan¹

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Heat in underground mines is a major cause for concern as it has significant adverse effects on both the health and safety of underground mines workers. Therefore, effective heat management strategies are essential. The most common method of cooling for underground mines is ventilation. If the ambient air temperature above the mine is cool enough, sending this air underground may be sufficient to cool the mine. However, in instances where depth and rock temperatures become excessive, refrigeration systems may be required to supplement the ambient air. Currently the refrigeration systems used to cool underground mines are conventional vapour-compression systems. The issue with these systems is that they consume large quantities of energy from fossil fuels, which is both costly and has negative effects on the environment. Price motivation is one of the key drivers towards mining companies' shift towards increasing their consumption of renewables (Energy and Mines, 2018). Solar power is a clean and abundant source of energy, particularly within Australia, and if it can be harvested and utilised properly, provides a sustainable and effective alternative to underground mine cooling. The aim of this project was to conduct an economic analysis on the feasibility of using solar power to cool underground mines. Two different solar photovoltaic (PV) systems were compared: a solar PV system with grid connection and no battery storage and, a solar PV system with grid connection and battery storage. It was found that the solar PV system with grid connection and no battery storage was an economically feasible solution. This solar PV system has the potential to achieve total cost savings of $19.24 million (a 57% reduction in net present value), which represents a 33.59% decrease in the unit cost of electricity ($/kWh). On the other hand, the solar PV system with battery storage, was not an economically feasible solution, primarily due to the high capital costs of the batteries. However, as time increases both the cost of solar PV modules and the cost of batteries will be driven down due to economies of scale.

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Practical Considerations for Using Personal Cooling Garments for Heat Stress Management in Physically Demanding Occupations: A Systematic Review and Meta‐Analysis Using Realist Evaluation

Tetzlaff,

Ioannou,

O'Connor

et al. 2024

American J Industrial Med

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IntroductionDue to rising temperature extremes, workplaces are seeking new solutions, such as using personal cooling garments (PCG) to mitigate and manage workplace heat exposure. This systematic review sought to assess the physiological and perceptual effects of PCGs on workers in standard work clothing performing moderate‐to‐heavy intensity tasks in hot environments.MethodsA peer‐reviewed search strategy was conducted in MEDLINE, Embase, CINAHL, Scopus, Global Health, and Business Source Complete with no language or time limits. A meta‐analysis using a realist evaluation framework was then performed to evaluate the effectiveness of the PCGs.ResultsThirty‐three studies with 764 participants (98% male; average 21 ± 34 participants per study), conducted primarily in a laboratory setting (76%) were included. The studies were 193 ± 190 min in duration and consisted of a moderate‐to‐heavy work effort of 3.3 ± 1.0 METs in hot ambient conditions (temperature: 35.9 ± 3.3°C, 51.4 ± 12.1% relative humidity, wet bulb globe temperature [WBGT] 31.2 ± 2.6°C). The PCGs (n = 67) facilitated heat exchange through conduction (n = 39), evaporation (n = 4), convection (n = 2), radiation (n = 2), or hybrid combinations (n = 20). Conductive and hybrid PCGs offered the greatest thermoregulatory benefit, whereby core temperature (Tc) and heart rate (HR) reductions were consistently observed (Conductive: Tc: −0.3°C, HR: ‐12 bpm; Hybrid: Tc::‐0.2°C, HR: −10 bpm), while PCGs directed at enhancing evaporative and radiative heat exchange had no or minimal effect on the physiological outcomes assessed (i.e., TC < 0.1°C, HR: <0.7 bpm).ConclusionWhile the PCGs had a positive overall effect, conductive options offered the most consistent benefit to workers. WBGT, clothing insulation, and duration of wear significantly affected some physiological and perceptual outcomes.

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Challenges in Selecting an Appropriate Heat Stress Index to Protect Workers in Hot and Humid Underground Mines

Cited by 72 publications

References 23 publications

Analysis of climatic conditions limits in underground mines from the legislation perspective of the Republic of Serbia

Analysis of climatic conditions limits in underground mines from the legislation perspective of the Republic of Serbia

UQ eSpace

Practical Considerations for Using Personal Cooling Garments for Heat Stress Management in Physically Demanding Occupations: A Systematic Review and Meta‐Analysis Using Realist Evaluation

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